Izici
Isibuko senkundla egxile ku-f-theta, empeleni, siwuhlobo lwesibuko senkundla, siklanyelwe ukwenza ubude besithombe ne-engeli yokuskena ukuze kwanelise ubudlelwano y=f*θ neqembu lelensi (θ i-engeli yokuchezuka kwe-galvanometer) , ngakho-ke isibuko se-f-theta saziwa nangokuthi ilensi yomugqa.Inezici ezimbalwa:
(1) Ngokukhanya kwe-monochromatic, indiza ethwebulayo yendiza, yonke ikhwalithi yesithombe sendiza yesithombe iyahambisana, ukuphambuka kuncane.
(2) Isivinini esithile sokuchezuka sokukhanya kwesigameko sihambisana nesivinini sokuskena esingaguquki, ngakho ukuskena cishe komugqa kungenziwa ngokukhanya kwesigameko kwesivinini esilinganayo se-angular.
Ulwazi Lokukhetha kwe-F-Theta Focusing Field Mirror
Imingcele yobuchwepheshe eyinhloko yezibuko zasensimini ihlanganisa ubude begagasi obusebenzayo, ububanzi bokuskena (noma ubude obugxilile), kanye nobubanzi bendawo obugxilisiwe.
1) I-Wavelength esebenzayo:Ubude begagasi obusebenzayo belensi yasensimini bunqunywa i-laser yomshini wokumaka.Ubude be-wavelength be-fiber laser ngu-1064 nm, ubude be-wavelength be-laser ye-CO2 ngu-10.6 um, ubude be-laser eluhlaza bungu-532 nm, ubude be-waveleng ye-laser ye-UV bungama-355 nm, kanti ilensi yensimu ehambelana nayo ikhethiwe ukuze ihambisane nayo. laser.
2) Indawo yokuskena:Indawo yokuskena yesibuko senkundla egxilile inqunywa ubude bokugxila kwesibuko sensimu egxilile, ubude bokugxila besibuko senkundla ngokuvamile kumakwa kubude obugxilwe kuphela, ubude bokugxila kanye nendawo yokuskena inefomula yokuhlola: indawo f = 0.7 × ubude obugxilile. .
Ngokwesibonelo, f=160 mm isibuko senkundla sihambisana nesikwele esingu-112 mm, ukulungiswa okuvamile kobubanzi benombolo ephelele ngu-110 mm × 110 mm, f=100 mm isibuko senkundla sihambisana nobubanzi obungu-70 mm × 70 mm.
3)Umfundi wesigameko:Umfundi wesigameko wesibuko sasensimini kufanele alingane nobubanzi be-laser beam evela ku-galvanometer.Kodwa sibazi kanjani ubukhulu bobubanzi be-laser beam evela ku-galvanometer?Thatha inombolo encane kunazo zonke kwezimbili: eyodwa = indawo ephumayo ye-laser * isiphindaphindi sesandisi sogodo;enye ilingana nenombolo yendawo ye-galvanometer.
Kwenzekani uma ububanzi be-laser beam evela ku-galvanometer bukhulu kunomfundi wesigameko sesibuko sasensimini?Uma udlala le lensi yenkundla yefomethi enkulu kunazo zonke yephethini, ingxenye emaphakathi ayinayo inkinga, unqenqema lwengxenye luzozwa ngokusobala ukukhanya okubuthakathaka kakhulu, ukujula kokumaka nakho kuzoba kuncane kakhulu.Le parameter inqwaba abathengisi imishini abanaki, kodwa futhi ngokuvamile ukwenza amaphutha, kumele baqaphe.
4) Ububanzi bendawo okugxilwe kuyo “d”:ngefomula yendawo yokugxila elula ethi “d” = 2fλ / D yazi, uma ubude bendawo “f” buba bude, buba bukhulu ububanzi bendawo okugxilwe kuyo “d”;i-wavelength “λ” iba yinde, iba nkulu ububanzi bendawo okugxilwe kuyo “d”;ubukhulu bendawo yesigameko D, buncane kunobubanzi bendawo okugxilwe kuyo “d”.
Kodwa sazi kanjani ukuthi isibuko esithile sasensimini sigxile kangakanani?Kukhona ipharamitha ngaphakathi kwamapharamitha welensi yenkundla evamile: umkhawulo wendawo yokuhlukanisa noma ebizwa ngokuthi indawo ehlukanisiwe noma ebizwa ngokuthi indawo encane, leli nani ngokuyisisekelo lilingana nenani eliphansi lelensi yenkundla engagxilwa kuyo, kodwa leli nani liyinani lethiyori. inani langempela ngokuvamile likhulu kunaleli nani.
5) Ibanga lokusebenza:Amakhasimende amaningi athenga amalensi enkundla futhi abone ubude bokugxila, kodwa ipharamitha yebanga lokusebenza ayivamisile ukuqashelwa.Kodwa lapho uthenga i-lens yensimu yobude obugxile, le pharamitha kufanele inakwe ngokukhethekile, ngaphandle kwalokho kulula ukwenza iphutha.Ngoba amakhasimende amaningi ekhabhinethi aphakamisa ukuphakama kokulungiswa kwekholomu anqunyelwe.Ngaphezu kwalokho, uma sicabangela ukuphakama kwekholomu, sidinga futhi ukucabangela ukuphakama komkhiqizo ngokwawo, ukuphakama komkhiqizo ngokwawo kungama-200mm ukuphakama, khona-ke ukuphakama kwekholomu ehambisanayo kufanele kwengezwe ekuphakameni komkhiqizo.
6) Kukhona indawo ethile egobile noma ukuphakama okuphezulu nokuphansi komkhiqizo, ukwandisa ububanzi bokumaka, uye waqaphela ukujula kokugxila ukuhlangabezana nezidingo.Njengoba sazi, ukuze ushaye umkhiqizo ngendawo ethile egobile noma ukuphakama nokwehla okuphezulu nokuphansi, ilensi yendawo idinga ukujula okuthile kokugxila, futhi uma idinga ukugxila okude okujulile, khona-ke ubude bokugxila obuhambisanayo. idinga ukuba yinde.Ngakho-ke lesi sikhathi sokucabangela isibuko sensimu asikwazi nje ukubheka ububanzi, kodwa futhi ukuthatha ukujula kokugxila ku-akhawunti, ngakho-ke udinga ukwandisa ububanzi, ngakho ubude bokugxila buyanda, ukujula okuhambisanayo kokugxila kuzophinde kwande.
7) Imicu Yezibuko Zensimu.Amanye amabhrendi anemicu yesibuko yasensimini ehlukene.Ngakho-ke lapho uthenga isibuko sensimu, kufanele futhi uthole intambo, uma ungakwazi ngempela ukuthola intambo ehambisanayo yesibuko sensimu, ungathola isibuko sensimu ukwenza i-laser marking machine cabinet ukwenza indandatho yokuguqula intambo.
8) Amanye amapharamitha asele angase abaluleke ukuqaphela: Amanani we-M1 kanye ne-M2 (ibanga le-galvanometer lens ukusuka ku-lens yasendle), i-engeli yokuskena θ, usayizi welensi, iphuzu lokubuyisela emuva (lokhu kubalulekile ezinhlelweni zamandla aphezulu) , kodwa la mapharamitha awakhathazeki kangako, futhi amakhasimende akhethekile angase acele lokhu.
Isikhathi sokuthumela: Nov-09-2023